Natural gas pipeline laying pipe supporting device

Abstract

The invention discloses a natural gas pipeline laying pipe supporting device which comprises a walking assembly, the walking assembly comprises two connecting frames, each connecting frame is provided with two chain wheels, and every two matched chain wheels are provided with a walking crawler belt; the main frame assembly comprises a U-shaped frame, and transverse plates are fixedly connected to the front side and the rear side of the U-shaped frame; the power control assembly is installed at the upper end of the rear side transverse plate, and the power control assembly comprises a control box installed at the upper end of the rear side transverse plate; the lifting assembly is used for achieving relative lifting of the U-shaped frame relative to the walking assembly, and therefore the effect of moving the supporting pipe is achieved; and the pipe supporting assembly is used for supporting the pipe body. The device can provide stable support in the process that the pipeline sinks into the pipe ditch, the bending moment generated by the self weight of the pipeline is reduced, and therefore the construction risk is reduced, and the construction safety is improved.

Description

Technical Field

[0001] The invention relates to the field of natural gas pipeline laying, and in particular to a natural gas pipeline laying trustee device. Background Art

[0002] In LNG long-distance pipeline projects, open-cut construction is the most common process. Usually, excavators or trenchers are used to dig trenches, and then multiple pipe-lifting machines are used to complete the pipeline trenching. This process requires a large area, involves many machines, has limited efficiency, is difficult to control costs, and has a great impact on the environment. In recent years, the pipe-sinking trenching process has been derived from the open-cut method. This process places the pipe directly above the trench to be excavated after welding, and then uses an excavator on each side of the trench to excavate the soil under the trench, and gradually sinks the pipe to the designed depth in the trench by its own gravity. The existing pipe-sinking trenching process in LNG long-distance pipeline projects usually involves the following steps: excavating the trench along the pipeline route, using the pipeline's own gravity, and using excavators and other equipment to slowly sink the pipeline into the trench. This method has obvious advantages over the traditional open-cut process in terms of ease of operation and construction efficiency; However, the immersed tube trenching process still has some shortcomings, especially during the free sinking of the pipeline. Due to the large height difference, the pipeline will be in a high stress state and produce a large bending moment, which may cause pipeline damage and increase construction risks. In addition, since it is difficult to keep the excavation progress on both sides completely consistent, the pipeline trenching process is prone to lateral deviation. If adjustments are not made in time, the pipeline may deviate linearly from the designed position, leading to quality problems. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings existing in the prior art and propose a natural gas pipeline laying trustee device, which can provide stable support during the process of sinking the pipeline into the trench, reduce the bending moment caused by the pipeline's own weight, thereby reducing construction risks and improving construction safety.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions: A natural gas pipeline laying trustee device includes a walking assembly, the walking assembly includes two connecting frames, each of the connecting frames is equipped with two sprockets, and each two matching sprockets are equipped with a walking track; a main frame assembly, the main frame assembly includes a U-shaped frame, and the front and rear sides of the U-shaped frame are fixedly connected to cross plates; a power control assembly, the power control assembly is installed on the upper end of the rear cross plate, and the power control assembly includes a control box installed on the upper end of the rear cross plate; a lifting assembly, the lifting assembly is used to realize the relative lifting of the U-shaped frame relative to the walking assembly, so as to achieve the effect of trustee movement; a trustee assembly, the trustee assembly lifts the pipe body.

[0005] Preferably, the lifting assembly includes two connecting columns symmetrically fixedly connected to the upper ends of the two horizontal plates, each connecting column has a columnar groove at the lower end, each connecting frame has a U-shaped plate fixedly connected to the outer side, and each U-shaped plate has a fixed plate fixedly connected to the upper end.

[0006] Preferably, the upper end of each of the fixing plates is fixedly connected with a mounting column, the upper end of each of the mounting columns extends into the interior of the columnar groove, each of the columnar grooves is provided with a vertical column, the lower end of each of the vertical columns is provided with a threaded groove, the inner side of each of the threaded grooves is provided with a threaded layer, and the outer side of each of the vertical columns is elastically connected to the inner wall of the columnar groove through a plurality of springs.

[0007] Preferably, each of the mounting columns is provided with a cavity, a mounting bracket is installed on the inner top of each of the cavity, a driving motor is installed on each of the mounting brackets, the output shaft of the driving motor passes through the cavity and is fixedly connected with a threaded column, and the upper end of each of the threaded columns extends into the corresponding thread groove and is threadedly connected to the thread layer.

[0008] Preferably, each of the driving motors is a servo motor capable of changing the rotation direction.

[0009] Preferably, the upper end of each mounting column is fixedly connected to a guide rod, the lower end of each vertical column is provided with a guide groove, and the upper end of each guide rod extends into the corresponding guide groove and is slidably connected.

[0010] Preferably, the hosting assembly includes a connecting plate fixedly connected to the bottom of the U-shaped frame, and the upper end of the connecting plate is fixedly connected to an arc-shaped supporting plate.

[0011] Preferably, the arc-shaped support plate is provided with a plurality of mounting openings, a rotating shaft is rotatably connected between the inner walls of each mounting opening, a rotating wheel is fixedly connected to the outer side of each rotating shaft, and a rubber layer is provided on the outer side of each rotating wheel.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. By providing stable support during the process of sinking the pipeline into the trench, the present invention significantly reduces the bending moment caused by the pipeline's own weight, reduces the risk of pipeline damage, and thus improves the safety of construction.

[0013] 2. The concave design of the mainframe frame assembly and the multi-directional adjustment capability of the lifting system enable the device to adapt to different construction environments, including trenches of different depths and slopes, as well as to cope with uneven ground on both sides of the trench.

[0014] 3. By reducing the reliance on machinery and improving construction efficiency, the present invention helps to reduce construction costs. At the same time, reducing the risk of pipeline damage also means saving the cost of maintenance and replacement.

[0015] 4. Through the setting of the hosting component, on the basis of ensuring the lifting effect, a good vibration reduction effect is provided to further protect the pipeline surface from damage. The spacing of the rotating wheels is accurately calculated to ensure the stability of the pipeline, avoid direct contact between the pipeline and the bracket, and reduce the wear on the pipeline surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a natural gas pipeline laying trustee device proposed by the present invention; Figure 2 for Figure 1 Schematic diagram of the front structure; Figure 3 This is a schematic diagram of the structure of the hosting component; Figure 4 is a schematic diagram of the cross-sectional structure of one of the connecting columns; Figure 5 for Figure 4 An enlarged schematic diagram of point A.

[0017] In the figure: 1 U-shaped frame, 2 walking track, 3 connecting frame, 4 U-shaped plate, 5 horizontal plate, 6 arc-shaped support plate, 7 connecting column, 8 sprocket, 9 connecting plate, 10 control box, 11 mounting port, 12 rotating shaft, 13 rotating wheel, 14 rubber layer, 15 guide groove, 16 mounting column, 17 fixing plate, 18 columnar groove, 19 cavity, 20 vertical column, 21 spring, 22 thread groove, 23 thread layer, 24 thread column, 25 mounting frame, 26 driving motor, 27 guide rod. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0019] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0020] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0021] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0022] Reference Figure 1-Figure 5A natural gas pipeline laying trusteeship device includes a walking assembly, which includes two connecting frames 3, each of which is equipped with two sprockets 8, and each of the two matching sprockets 8 is equipped with a walking track 2. The walking track 2 adopts a wide track design to meet the needs of traveling and working in the trench excavation area, reduce the pressure on the soil on both sides of the excavated trench, and avoid soil deformation or trench collapse. The inner width of the two tracks is greater than the trench width and a certain safety distance is reserved. A motor not shown in the figure is also provided here to drive one of the sprockets 8 to ensure the normal operation of the walking assembly; As an embodiment of the present invention, it also includes a main frame assembly, which includes a U-shaped frame 1, and the front and rear sides of the U-shaped frame 1 are fixedly connected with a cross plate 5. The transverse cross-section of the main frame assembly adopts a concave design, so that the hosting system can be lower than the top surface of the crawler during operation, thereby improving the range of height adjustment and enhancing the adaptability of the device to different construction environments. It is welded with high-strength steel, and hollow stiffening ribs are used at the concave corner position to improve the overall rigidity. Under the premise of considering the stability and durability under the action of dynamic loads during hosting operations, the weight of the frame assembly is reduced as much as possible to improve the mobility of the device, improve construction efficiency, and reduce energy consumption and operating costs; As an embodiment of the present invention, it also includes a power control assembly, which is mounted on the upper end of the rear side transverse plate 5. The power control assembly includes a control box 10 mounted on the upper end of the rear side transverse plate 5. The power control assembly is located on the side of the device, so that the total height of the area where the central axis pipeline of the vehicle body passes is reduced, thereby improving the usability of the device; As an embodiment of the present invention, it also includes a lifting component, which is used to realize the relative lifting of the U-shaped frame 1 relative to the walking component, so as to achieve the effect of hosting movement. The lifting component includes two connecting columns 7 symmetrically fixedly connected to the upper ends of the two horizontal plates 5, and each connecting column 7 has a columnar groove 18 at the lower end. The outer side of each connecting frame 3 is fixedly connected to a U-shaped plate 4, and the upper end of each U-shaped plate 4 is fixedly connected to a fixing plate 17, and the upper end of each fixing plate 17 is fixedly connected to a mounting column 16, and the upper end of each mounting column 16 extends to the inside of the columnar groove 18, and each columnar groove 18 is provided with a vertical column 20, and each vertical column A thread groove 22 is provided at the lower end of each vertical column 20, and a thread layer 23 is provided on the inner side of each thread groove 22. The outer side of each vertical column 20 is elastically connected to the inner wall of the columnar groove 18 through a plurality of springs 21. A cavity 19 is provided in each mounting column 16, and a mounting frame 25 is installed on the inner top of each cavity 19. A drive motor 26 is installed on each mounting frame 25. The output shaft of the drive motor 26 passes through the cavity 19 and is fixedly connected with a thread column 24. The upper end of each thread column 24 extends to the inside of the corresponding thread groove 22 and is threadedly connected with the thread layer 23. Each drive motor 26 is a servo motor that can change the rotation direction. As an embodiment of the present invention, the upper end of each mounting column 16 is fixedly connected to a guide rod 27, the lower end of each vertical column 20 is provided with a guide groove 15, and the upper end of each guide rod 27 extends into the corresponding guide groove 15 and is slidably connected; As an embodiment of the present invention, it also includes a trustee assembly, which lifts the pipe body. The trustee assembly includes a connecting plate 9 fixedly connected to the bottom of the U-shaped frame 1, and the upper end of the connecting plate 9 is fixedly connected to an arc-shaped support plate 6. A plurality of mounting openings 11 are provided on the arc-shaped support plate 6. A rotating shaft 12 is rotatably connected between the inner walls of each mounting opening 11, and a rotating wheel 13 is fixedly connected to the outer side of each rotating shaft 12. A rubber layer 14 is provided on the outer side of each rotating wheel 13. The material of the bracket is selected from high-strength, wear-resistant alloy steel to withstand the weight and friction of the pipeline. The rotating wheels 13 are cylindrical and evenly distributed on the arc-shaped bracket. A double-bearing structure is adopted, which can maintain a low friction coefficient while bearing a large load, thereby reducing the resistance of the pipeline during sinking. The setting of the rubber layer 14 provides a good vibration reduction effect while ensuring the durability of the roller, further protecting the pipeline surface from damage. The spacing between the rotating wheels 13 is accurately calculated to ensure the stability of the pipeline, avoid direct contact between the pipeline and the bracket, and reduce wear on the pipeline surface.

[0023] In the present invention, the device operates on the upper end of the excavated trench, and the U-shaped frame 1 is located inside the trench. The three actions of overall lifting, longitudinal tilting and lateral tilting are realized through four independent lifting parts. After the operation starts, the device is first put in place and lifted as a whole to ensure initial contact with the pipeline. During the operation, the overall height is adjusted in real time according to the actual situation and the distance between the device and the free end of the pipeline; the longitudinal tilting action is used to adjust according to the sinking speed of the pipeline and the slope of the trench to ensure that the contact area between the trustee system and the pipeline is maximized, while avoiding local stress on the pipeline; the lateral tilting action is used to adapt to possible irregularities of the trench, unevenness of the ground on both sides of the trench or slight position deviations of the pipeline, further ensuring stable contact between the trustee system and the pipeline, and the lifting action is accurately controlled by a servo motor to adapt to different construction environments and height changes during the sinking of the pipeline.

[0024] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A natural gas pipeline laying trusteeship device, characterized in that: include: A walking assembly, the walking assembly comprising two connecting frames (3), each of the connecting frames (3) being mounted with two sprocket wheels (8), and each of the two matching sprocket wheels (8) being mounted with a walking track (2); A main frame assembly, the main frame assembly comprising a U-shaped frame (1), the front and rear sides of the U-shaped frame (1) being fixedly connected to a transverse plate (5); A power control assembly, the power control assembly being mounted on the upper end of the rear transverse plate (5), the power control assembly comprising a control box (10) mounted on the upper end of the rear transverse plate (5); A lifting assembly, the lifting assembly is used to realize relative lifting of the U-shaped frame (1) relative to the walking assembly, thereby achieving a hosting movement effect; A hosting component is used to lift the pipe body.

2. A natural gas pipeline laying trustee device according to claim 1, characterized in that: The lifting assembly comprises two connecting columns (7) symmetrically fixedly connected to the upper ends of the two horizontal plates (5), each connecting column (7) having a columnar groove (18) at its lower end, each connecting frame (3) having a U-shaped plate (4) fixedly connected to its outer side, and each U-shaped plate (4) having a fixed plate (17) fixedly connected to its upper end.

3. A natural gas pipeline laying trustee device according to claim 2, characterized in that: The upper end of each fixing plate (17) is fixedly connected to a mounting column (16), the upper end of each mounting column (16) extends into the interior of the columnar groove (18), a vertical column (20) is arranged in each columnar groove (18), a threaded groove (22) is provided at the lower end of each vertical column (20), a threaded layer (23) is provided on the inner side of each threaded groove (22), and the outer side of each vertical column (20) is elastically connected to the inner wall of the columnar groove (18) via a plurality of springs (21).

4. A natural gas pipeline laying trustee device according to claim 3, characterized in that: Each of the mounting columns (16) is provided with a cavity (19), a mounting frame (25) is mounted on the inner top of each of the cavities (19), a driving motor (26) is mounted on each of the mounting frames (25), an output shaft of the driving motor (26) passes through the cavity (19) and is fixedly connected to a threaded column (24), and the upper end of each of the threaded columns (24) extends into the interior of a corresponding thread groove (22) and is threadedly connected to the thread layer (23).

5. A natural gas pipeline laying trustee device according to claim 4, characterized in that: Each of the driving motors (26) is a servo motor capable of changing the rotation direction.

6. A natural gas pipeline laying trustee device according to claim 4, characterized in that: The upper end of each mounting column (16) is fixedly connected to a guide rod (27), the lower end of each vertical column (20) is provided with a guide groove (15), and the upper end of each guide rod (27) extends into the inside of the corresponding guide groove (15) and is slidably connected.

7. A natural gas pipeline laying trustee device according to claim 1, characterized in that: The hosting assembly comprises a connecting plate (9) fixedly connected to the bottom of the U-shaped frame (1), and the upper end of the connecting plate (9) is fixedly connected to an arc-shaped supporting plate (6).

8. A natural gas pipeline laying trustee device according to claim 7, characterized in that: The arc-shaped support plate (6) is provided with a plurality of mounting openings (11), the inner wall of each mounting opening (11) is rotatably connected to a rotating shaft (12), the outer side of each rotating shaft (12) is fixedly connected to a rotating wheel (13), and the outer side of each rotating wheel (13) is provided with a rubber layer (14).

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